# CodeSignal

> CodeSignal is a San Francisco-based skills platform that uses AI-driven simulations to assess technical and soft-skills talent and to train workers through Cosmo, its conversational AI tutor. Founded in 2015 as CodeFights and rebranded in 2018, it now powers technical hiring and upskilling at companies like Meta, Netflix, Zoom, Robinhood and Capital One.

- **Founded:** 2015
- **Headquarters:** San Francisco, United States
- **Founders:** Tigran Sloyan (Co-founder & CEO), Aram Shatakhtsyan (Co-founder & CTO), Felix Desroches (Co-founder)
- **Team size:** ~140
- **Products:** CodeSignal Hire, CodeSignal Learn, Cosmo, Conversation Practice, Coding Score
- **Notable:** Created Coding Score, a standardized developer-skills benchmark., Ran the largest annual University Ranking by coding skill across U.S. CS programs., Launched Cosmo, the first AI tutor embedded inside both assessments and a consumer app.

## Products & services

- **CodeSignal Hire** — Technical assessments, interview platform and certified evaluations used by enterprises to screen and interview engineering candidates.
- **CodeSignal Learn** — AI-native learning platform with a guided AI tutor that walks users through coding, data, AI and now leadership courses.
- **Cosmo** — AI tutor that lives inside assessments and inside the Learn app. Launched as iOS app in 2025 with 300+ bite-sized courses.
- **Conversation Practice** — AI role-play simulations for soft skills - feedback, listening, conflict resolution - graded by Cosmo.
- **Coding Score** — Standardized 300-850 score that benchmarks a developer's coding ability.

## Achievements

- Created Coding Score, a standardized developer-skills benchmark.
- Ran the largest annual University Ranking by coding skill across U.S. CS programs.
- Launched Cosmo, the first AI tutor embedded inside both assessments and a consumer app.
- Raised $87.5M in total funding without a public IPO timeline.

## Latest updates

- **2025-08** — Launched Cosmo iOS app with 300+ bite-sized GenAI, coding, marketing, finance and leadership courses.
- **2025-02** — Released Conversation Simulation, a voice-AI role-play tool for leadership and communication.
- **2024-08** — Launched Conversation Practice for AI-graded soft-skills training.
- **2024-02** — Launched CodeSignal Learn, an AI-tutored learning platform.
- **2021-09** — Closed $50M Series C led by Index Ventures.

## Links

- Website: https://codesignal.com
- LinkedIn: https://www.linkedin.com/company/codesignal
- Twitter/X: https://twitter.com/CodeSignalCom
- GitHub: https://github.com/CodeSignal
- YouTube: https://www.youtube.com/@CodeSignal
- Facebook: https://www.facebook.com/codesignalcom

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Profile page: https://yespress.io/codesignal
Published by YesPress — https://yespress.io
Last updated: 2026-05-29